Quartz ceramic products are also widely used in our daily lives. There are mainly two types: one is produced using crystalline quartz such as quartz sand or crystal at 1600 degrees, and the other is produced using quartz glass crushed at 1200 degrees.
The effect of impregnation on densification of quartz ceramics. The green body with additives can obtain a dense sintered body, and the mechanical strength is generally higher than that of quartz ceramics without additives. This is due to the presence of heterogeneous glass with a significantly different thermal expansion coefficient from amorphous silica in the blank. In addition, the shrinkage of quartz ceramic body is less than 6%, making it easy to produce products with the correct size, and it is a heat-resistant ceramic material with good development and utilization prospects. Many manufacturers are researching a crucible sintering process that can make the structure of quartz ceramic crucibles dense and even, with good overall average performance, good thermal stability of products, and the ability of crucibles to resist thermal explosions during the casting process.

The main raw materials used for quartz ceramic products are fused silica fragments.The slurry that meets the fineness requirements is made of gypsum model,which is formed by grouting and dried after demoulding.If we only use quartz glass waste or fused silica as raw material,we can not make dense ceramic sintered body according to the traditional process,that is,quartz ceramics with water absorption less than 2%.The impregnated body is roasted at around 1100℃to form a high strength,and the impregnating solution is the upper layer of gel solution after 24 hours of mud settling.
The effect of the feeding method on the density and sintering of the injection molded green body during the fine grinding of raw materials is that without additives,the size and porosity of the sintered green body remain almost unchanged before the temperature of 1100℃.The mechanical strength of quartz ceramic products is directly proportional to the degree of dense sintering.